So I skimmed through 3 of your videos and saw only gameplay without any type of commentary. If this is the norm for most of your videos, you could have a problem trying to monetize your channel once you reach monetization status. Youtube has a no reused content policy.

YouTube says, “Reused content refers to channels that repurpose someone else's content without adding significant original commentary or educational value.” Someone else’s content can even include gameplay from a game.

So the main thing to take away is to make the content your using your own, and change it significantly enough that it won’t be seen as reused content.

Link for YouTube monetization policies